Carriage return and normalizing mechanism for card-perforating machines



Sept. 18, 1928.

W. W. LASKER CARRIAGE RETURN AND NORMALIZING MECHANISM FOR CARD PERFORATING MACHINES Filed April 28, 1927 4 Sheets-Sheet 1- gvwamtoz WZZLl'a/iz WJJaJ/wr 35 M SHOW-e 1 .fis at. 18, 1928. 1,684,546

W. W. LASKER g iiiARRxAeE RETURN AND NORMALIZING MECHANISM FOR CARD PERFORATIING MACHINES Filed April 1927 4 Sheets-Sheet 2 William Willa km @331 1142s attorne Sept. 18, 1928.

- w. w. LASKER CARRIAGE RETURN AND NORMALIZING MECHANISM FOR CARD PERFORATING MACHINES Filed April 28-, 1927 4 Sheets-Sheet 3 avwantoz Mall 1m WLaSh'er 14M abhor/140% gept 18, 1928., I 11,684,546

W. W. LASKER CARRIAGE RETURN AND NORMALIZING MECHANISM FOR CARD PERFORATING MACHINES Filed April 1927 4 Sheets-Sheet 4 A :3. MM -15 I112 H] 53 5 vwemtoz Patented Sept. 18, 1928.

UNITED STATES I "1,684,546 PATENT OFFICE.

WILLIAM W. LASKER, BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO REMINGTON RAND INCL, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

CARRIAGE RETURN AND NORMALIZING MECHANISM ron CARD-PERFORATING maonnms.

Application filed April 28,

duce a device of his nature in which the 1 mechanism may be adjusted for determin ing any desired position of the carriage as the home or normal position, and for effecting a positive de-energizing of the magnetic means when the carriage return key has been depressed and the-carriage has been comletely returned to .home positlon, regard- I ess of whether the carriage return key is held. down during the entire return of the carriage or is released during the return of the carriage.

With these and other objects in view the invention resides in certain novel construction and combination and arrangement of parts which will 'be hereinafter fully de- 80 scribed and specificallyclaimed and which areshown in'the accompanying drawings in which:

Fig. 1 is a fragmentary front elevation of a card perforating or punching machine pro-' vided withmy improved magnetic carriage return, parts being broken away for the sake of clearness. 1 I

Fig. 2 is a fragmentary vertrcal sectional view of the machine shown m F g. 1.

Fig. 3 is a detail viewshow ng the carriage being returned by the carnage return mechanism.

Fig- 4 is a top plan'vlew ,shown'in Fig. 3. v Fig. 5 is a view similar to Flg. 3 but showing the carriage returned to its normal or home position. v Fig. 6 is a fragmentary detall view indicating the relay and mechan sm operated thereby. I Fig. 7 is a top plan view of the mechamsm shown inFig. 6.

of the mechanism I bar 29. a

1927. Serial No. 187,194.

Fig. 8 is a diagrammatic view indicating the electrical circuits.

Like characters of reference refer to like parts in all figures. 1 l

Referring to the drawings in detail 20 re resents the general framework of the machine, the machine shown in the drawings and to which my invention has been attached being a punching or perforating machine in common use and known on the market as the Powers punch, such for example as that illustrated in Letters Patent of the United States, No. 1,643,779 granted to W. W. Lasker Sept. 27', 1927. 21 represents a carriage provided with wheels 22 which ride upon rails 23 so that the carriage is movable transversely of the machine, as shown in Fig. 1. Movement of the carriage toward the right is effected by a spring drum such as shown in the pat ent to Lasker referred to but not shown herein, or suitable means, such movement being controlled by an escapement wheel 24 and escapement pawls 25 and 26.

As shown in Fig. 2, the carria e 21; carries a plurality of setting members 2 which are arranged in a row from front to rear of the machine, said setting members corresponding to and being controlled by keys or finso ger pieces (not shown) each operable to cause depression of its a respective set-' ting member 27. The row of setting members 27 is movable over a field of set-bars 28 there being a plurality of rows of such bars and each row comprising a respective bar 28 for each of the setting members 27. The movement of the carriage brings setting members 27 over the setrbars .28 of one column after another of the set-bars 28. Upon the depression of one of the setting members 27 a respective set-bar 28 over which it is at that time located, is de ressed, and is held in depressedposition y a spring pressed latch bar 29, which engages with a shoulder 30 on the depressed bar .28. In moving down, this depressed bar 28 will have depressed a set-bar springin 31. There is one pin 31 for each of the ars 28, and each pin 31 is ur ed upwardly by a reo spective spring 32 w ich effects the return to normal gosition of the respective members 31- an 28 when free from the latch bar 34, an have their lower ends exten mg Each of the latch bars 29 has its righthand end, Fig, 2, arranged adjacent to a respective pivoted releasing pawl 37, and formed wit I ity of punches are indicatedat 33 there bein one punch located under each pin 31. A of the unches are mounted in a st'ri er into a movable frame 35 comprising a die and guide platesand formed witha card throat or passage 36. The frame 35 is adapted to be vertically reciprocated by means (not shown),-and when a card is m y the passa e 36, the card is moved with the frame an encounters all of the punches 33, lifting them with it. If a pin 31 is in a depressed position, it will stop the upward movement of its res ective punch 33 and said unch will be forced through the card there- By perforating the same. All of this mech- 'anism is old and well known in the art and in machines on the market and in common Pivotally mounted on the escapement wheel shaft, Fig. 1, is a rock member. 39 rovided with an arm 40 connected by. a ink 41 to a rock lever 42 which rock lever is ivotally mounted on the carriage frame and carries at its free end a beveled roller 43. When rock member 39 is rocked from the position shown in Fig. 1 to the position shown in Figs. 3 and 5, the roller 43 is moved downwardly so as to contact face 38 of the pawls 37; and if the carriage is then returned toward the left the roller will cause all ofthe pawls 37 which it contacts, to move their respective latch bars 29 so as to elfect releasing of any set bars 28 which may have been locked in set position. This mechanism is also oldand well known in the art.

Secured to the main framework of the machine is a rod 44, Fig. 3, which carries a slidable block'45 formed with a cam element 46 and a carriage return tooth 47. Secured to the bottom of the block 45 is a tape 48 which is connected to a shock absorbing spring 49, said sprin 49 being secured to a spring drum 50. T is spring drum tends. constantly to shift the block 45 toward the ri ht-hand side of the machine as shown in F1 1, 3, and 5. A second ta in ig. 1 M51, is secured to t e bottom of the block 45 and runs to the left passing 'over an idler roller 52 downwardly therefrom, havin its lower end secured to' a drum shape magnet 53. The magnet 53 is freely mounted on a sleeve 54 s'ccured to and rotatable b a constantl "running shaft 55 of the mac ine. The s eeve. 54 is providedwith a disk or flange 56 adjacent to the magiiet53.

It will now be seen that if the magnet 53 is energized it will ip thelflange; 56

- and will be turned there yin the direction indicated in Fig. 1, whereupon-the tape or an oblique face 38. A-plural mem er 39 and lifts said roller 57v thereby indicated auxiliary stop arm with a shoulder 78 adapted at times tb enstrip 51 will be drawnso as toshiftthe blbck I 45 to the left in Fig. 1. During the movement of the block 45, the cam 46, Fig. 3,

enga'es a roller 57 mounted on the rock operating link 41 androller 42 so as to render lever 43 effective for wiping out during the carriage return, whatever may have been setup in the machine. Tooth 47' on the block 45 now engages a roller or hub 58 mounted on theescapement shaft and;

draws the carriage toward the left.

' We shall now consider the meansfor en ergizmg the magnet 53 and the means for rendering the carriage return mechanism ineffective upon the carriage reaching normal or home position.

A bar 59 which ides block 45 in its movements,.is forme with slots 60 through which pass pins 61 secured to a stationary part of the frame of the machine. This permits a limited amount of endwisemovement of the bar 59 and said bar is normally held. in its left-hand position against the tension of a s ring 64 anchored to one of thepins 61 an secured at its other end to a pin 65 in the bar 59. Bar 59'is formed with rack teeth 66, and it is adapted to engage and 66 to enable the adjustment .of the block 68 along the bar 59. The lower-face of bar 59 is formed with, anotch 70, Fig; 3, under its left-hand end to receive one arm 71'of a bell-crank'lever pivoted to "a stationarypart of the machine and having, its other arm 72 element in Fig. 6 t e end of the arm 72 isnormally held by a shoulder 74 formed on a rock lever 73 is out of en agement with a contact ele-" ment 76. At this time the bar 59 is held b the 81111171 to the left as indicated in ig. 5 with the spring764 under tension.

gage the arm 72 as will be presently de scribed. A, spring 79 holds the lever and auxiliary stop arm '77 in contact with each other and a spring 80 constantl tends to draw the right-hand endof lever 5, Fig. 6,- downwardly. The left-hand end of lever 75 as indicated in Fig. 6, is contacted b the bottom of adjusting screw 81 whi 'screw is mounted on "the free end of mar mature 82 adapted to be la magnet-83.

operated by a refieferring now toFigdS, it will rovided with a contact or switch 3i1F1gs. 6, 7, and 8." As indicated.

.7 5; and in this position thecontact element Fig. 6, is'formed I that a 'wire 84 connects a lead line 85 with a'contact-86. A carriage return key 87 is connected to a switch element 88 for operating the same so as to complete the circuit from contact 86 throu h the wire 89 to the relay magnet 83" and thence by a wire 90 to the return line 91. With the parts in the position 'shown in 6, if the lever 75, is

rocked counter-clockwise it will be seen that lows: When an -operator has operated. the

arm'72 will be freed from shoulder 74 and .the lever 7 2 -71 will be rocked by-reason' of the connection of'arm'71 to the bar 59and the action of spring 64 on said bar. When keys of the'punch machine so as to move the carriage from itshome position toward the right, and thereafter depresses the carriage return key 87 the circuit-is'closedfrom 85, Fig. 8, through 84, 86, as, 89, and the magnet 83, and wire 90 to thereturn lead 91 thereby energizing the relay ma et 83 which draws down its armature 82. he screw- 81 efiects counter-clockwise rocking of lever. 75-so as to 7 release arm '72 whereupon the lever 72- 71 is moved with theba'r 59 by the springrfi4 e to the extent allowed by v the slots 60. bar 59 carries with it the'block 68. The

lever 72-71 in movin bringsthe-contact 7 3 into' engagement wit contact 76 thereby closing the circuit from 85 through 92, magnet '53 wire 93contacts 76ga'nd 73 and wire 94 to the return 1ea'd 91; Thislrenergizes magnet 53 which} immediately flange56 and isrotated thereby. down on the. tape 51 pulling the block45 Fig. 1, toward theleft against the tension 0 the spring in the drum 5O. When the block reaches the position shown in Fig. 3, the cam 46 raises roller 57 therebylowering the roller 43 to position to operate the release pawls' 87 and the tooth 47 has en aged the roller or hub 58 on the carriage. s the operation continues the block 45 draws the carriage toward the left until the hub 58 en ages t e igp-standing fingerpiece 69 ofthe' lock 68. he block 68 is thereby moved toward the "left to the extent permitted by'the slots 60,

whereby the lever 71--72 is rocked so as to move contact 73 out of engagement withcontact 76, Fig. 8, whereby thecircuit through the magnet 58 is broken and'the magnet immediately releases its grip on the huge 56. At the same'time the auxiliar stop or shoulder 7 8 catches arm 7 2 and hol said armand connecting parts against return movement. ',-When' the carriage return keyis now released the armature $82 will It will be Ig'fip's' the is draws rock clockwise moving the auxiliary 'stop arm 77 downwardly until the arm 72 escapes the shoulder 78 and moves slightly so as to rest a ainst shoulder 74. This slight movement 1s. not suflicient to effect movement of the contact 7 3 into engagementwith the contact 76', As soon as the magnet 58 is de energized. the spring drum 50 takes efi'ect'to draw the block 45 and its connected parts to 1 the right to their normal, position indicated inFig.1." seen that the relay" circuit is en- 7 tirc'ly independent of the magnet circuit and merely effects the closing'ot the switch of the latter circuit, so that if the operatorreleases the carriage return key prior. to the complete return of the carriage, the carriage will continue its movement and complete its re.-

. turn. It will-also be seen that if the carriage Iteturn'key is held in depressedposition after the carriage has been fully returned, no further, strain will be put on the parts, as

the contact 7 3 is held against again engaging contact'7 6 by theengagement of the shoulder 78 with the end of the arm 72. p

Itwill also be seen thatwhen the carriage is returned, its escapement will lock 'it against the block 68 whereby the bar 59 will.

be. locked against'movement by spring 64.

Consequently if the carriage-return key is o erated with thecarriage in home position, lever 75 merely 'moves idly, lever 71-72 being held against Operation, and,

magnet 53 is not energized.

While I have described what I consider to be the most desirable embodiment of my invention, it is obvious that many changes in mechanism details can be made that depart from the spirit ofmy invention, and I therefore do not limit myself to the exact embodis' ment herein shown and described nor to anything less than to the whole of m invention as hereinbefore described and ereinafter pointed out in the claims.

What Iclaim as my invention is: 1. The combination with the carriage of a card punching machine,- of a block nor-j mally out of the normal traverse of said carriage and formed with means for eng'agement with a portion ofsaid carriage, V

electro-magnetic means for moving said block to effect return of said carriage to home position and automatic means for block to normal position after returnin said 7 7 it has e ected the return of said carriage.

7 2. The combination with the: carriage of a card punching machine of a block nor-- mally out of the normal traverse of said carriage and formed with means for engage-- ment with a portion of'said carria electromagnet c means for moving sai block to efiectreturn of said carriage to home osi- ,tion, means for returnin said block to ome posit on after it has e ected the return of said carriage, and means for preventing operation of said electro-magnetic means when said carriage is in home position.

said carriage to eifect return of the latter and also provided with means for operating the releasing means on said carriage, electro-magnetic means for operating said block to effect the return of said carriage to home position, and automatic means for eflr'ecting return of said block to normal position.

v- 4. The combination with a'carriage, of a constantly running shaft, an el'ectro-magnet mounted on said shaft, an electrical circuit connected with said electro-magnet and including a switch, a second electrical circuit for efiecting operation of said switch, conin juxtaposition to said carriage and adapted to have a limited movement imparted to it, a lever connected to said bar, an electric circuit including a switch operable by said lever, means for normallytholding said lever in one position, electrical means for releasing said lever to effect operation of said switch, and means whereby,

said carriage may operate said bar, to effect movement of said lever for throwing said switch.

In testimony whereof I aflix my signature.

WILLIAM W. LASKEB. 

